CVE-2026-126198

pgEdge Postgres MCP Server custom tools performed writes without user confirmation

Published Nov 12, 2026 CVSS 3.1 · 3.1 Low EPSS n/a KEV · Not listed
Description
pgEdge Postgres MCP Server enables SQL queries against PostgreSQL databases through Model Context Protocol compatible clients. Prior to 1.1.0, the bundled clients, including the CLI and web client, decided whether to request write confirmation by checking only for the query_database tool name instead of server-published write annotations. Custom pl-do, pl-func, and writing sql tools therefore ran without confirmation on allow_writes connections, including when a model followed instructions in retrieved content. The affected control is a bundled-client warning rather than a server authorization boundary, and other MCP clients do not inherit that prompt. This issue is fixed in 1.1.0.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
First Time appeared Pgedge
Pgedge pgedge-postgres-mcp
Vendors & Products Pgedge
Pgedge pgedge-postgres-mcp
Type Values Removed Values Added
Description pgEdge Postgres MCP Server enables SQL queries against PostgreSQL databases through Model Context Protocol compatible clients. Prior to 1.1.0, the bundled clients, including the CLI and web client, decided whether to request write confirmation by checking only for the query_database tool name instead of server-published write annotations. Custom pl-do, pl-func, and writing sql tools therefore ran without confirmation on allow_writes connections, including when a model followed instructions in retrieved content. The affected control is a bundled-client warning rather than a server authorization boundary, and other MCP clients do not inherit that prompt. This issue is fixed in 1.1.0.
Title pgEdge Postgres MCP Server custom tools performed writes without user confirmation
Weaknesses CWE-357
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Nov 13, 2026, 12:19 AM
Reserved
Nov 10, 2026, 8:07 PM
Status
Awaiting Analysis
Published
Nov 12, 2026, 6:17 PM
Modified
Nov 13, 2026, 2:18 AM